Bake-oven.



No. 645,584.v l Patented Mar. 2o, i900 E. T. wlLnsMlTH.

BAKE oven.

' (Application led Dec. 16, 1899.) (No Model.)

IIHIHI- J8 u: Norms Pcrzns co., vwnmmja. WASHINGTON, n. C.

NITED STATES PATENT Frio.

BAKE-OVEN.

SPECIFICATION forming part of Letters PatentA No. 645,584, dated March 20, 1900.

Appiano., fneanaemter 16, 1899. serai No. 740,595. @modelo adapted to convey the heat upward at all sides of it before admitting the same to its interior and to direct it downward from its top portion, whereby the heat is more evenly distributed and enables it to bake more evenlyT at the top and bottom.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure lis a longitudinal n sectional view of an ovenA constructed in accordance with this invention. Fig. 2-is a horizontal sectional view.` Fig. 3 is a transverse sectional view on line 3 3 of Fig. l. Fig. 4 is a similar view 011 line 4 4 of Fig. l.

Like numerals of reference designate corresponding parts in all the figures of the drawings. i

l designates an outer casing receiving an inner casing 2 and having an open bottom to permit the flame of a gas, oil, or gasolene stove to impinge against a diaphragm 3 of the bottom 4 of the inner casing 2, whereby airis heated to a high degree before it passes upward between the inner and outer casings, as hereinafter described. The bottom diaphragm 3, which is arranged on the lower face of the bottom 4 of the inner casing, is bowed downwardly, as clearly illustrated in Figs. 1, 3, and 4 of the accompanying drawings, and it is provided at its corners with openings 5 for the escape of hot air. The outer casing, which may be constructed of any suitable material and which may be made ornamental or otherwise, is provided at the lower edges of its sides and ends with inwardly-extending approximately L-shaped anges 6, forming horizontal supports or ledges 'for brackets 7, which are secured to ssv the rear portion of the inner casing to sup- A any suitable locking device for securing it in its closed position.

Thehot air passes upward from the bottom of the oven at the sides and back of the same in the spaces between the inner and outer cas-` ings, and the inner casing has its upper edges 10 terminating'short of the top'of the oven to provide an entrance for hot air, which takes the course indicated by the arrows in the ac-v companying drawings.l J The hot air after proper escapes therefrom at the bottom there of by means of vertical flues 12, located in the intervening spaces between the inner and outer casings and communicating at their lower ends with the inner-*casing at the bottom thereof through openings 13 in the walls ofthesame. Theinterveningspacesbetween the inner and outer casings are divided into separate fines or passages by the dues l2. These flues, which may be constructed'inany suitable manner, deliver the hot air to the top of the oven at the sides and back of the same, and the said hot air passes over the top wall or plate 14 to t-he center thereof and passes upward through central openings l5 of a horizontal partition 16, which is interposed between the top wall or plate 14 and the top 17 of the outer casing. The outer casing is provided at its top with openings 18 for the es cape of the hot air. By this construction the air, which is heated to a high degree at the bottom of the oven, passes upward through `passing downward in the inner casing or oven the intervening spaces between the inner and outer casings before it enters the oven proper, and it is evenly distributed through the same in passing downward from the top ofthe inner easing to the openings 13 at the bottom IOC) thereof.' The rhot air, after leaving the bottom of the oven, is again conveyed tothe top of the same and is caused to traverse such top portion from the sides to the center and back again before it leaves the oven. By this tortuous passage of the hot air a maximum effect of the same is obtained, and the oven is uniformly heated and is enabled to bake evenly at the top and bottom.

The horizontal partition or plate 16 is secured to the top of the outer casing by suitable brackets or supports 19, and the openings 15 are arranged in a longitudinal series, as clearly illustrated in Fig. 1 of the accompanying drawings. The ovcn is provided at opposite sides of the inner faces of the side walls of the inner casing with suitable supports 2O for the reception of shelves or trays 21 for supporting the articles to be cooked.

It will be seen that the oven is simple and comparatively inexpensive in construction, that it is adapted to utilize the hot air to a maximum extent, and that it is uniformly heated by the same and is enabled to bake evenly at the top and bottom.

That is claimed is- 1. An oven comprising an outer casing open at its bottom and provided at its top with openings, an inner casing spaced from the outer casing and having its upper edges terminating short of the top of the same to provide entrances for hot air, a horizontal top or plate 14 located above the inner faces, and

the separate lines-located in the intervening spaces between the inner and outer casings, and dividing the said spaces into independent tlues or passages and communicating at their lower ends with the interior of the in ner casing at the bottom thereof and having their upper ends communicating with the space above the top or plate 14, substantially as described.

2. An oven comprising an outer casing open at the bottom an inner casing spaced from the outer casing and terminating short of the top of the same and provided at its bottom with openings, a horizontal top or plate 14 located above the inner casing, a horizontal partition interposed between the top or plate 14, and the top of the outer casing and provided with central openings, and tlues located in the intervening spaces between the casings and dividing the said spaces into independent liues or passages and extending upward from the openings at the bottom of the inner casing to the space above the horizontal top or plate, substantially as described.

3. An oven comprising an outer casing provided at its bottom with inwardly-extending tianges, an inner casing spaced from the outer easing andhaving its upper edgesterminati'ng short of the top of the same, a bottom diaphragm secured to the lower face of the bottom of the inner casing, and provided with corner-openings, the horizontal top wall or plate 14, located above the inner casing, and the lines extending upward from the bottom of the inner casing to the top wall or plate 14, and dividing the spaces between the in ner and outer easings into separate fines or passages, substantially as described.

4. An oven having its side and rear walls each provided with a plurality of separate and independent flues or passages, extending from the top to the bottom of the ovenand arranged toconvey hot air from the heating apparatus to the top of the oven, and adapted to carry the hot air from the oven at the bottom of the same to the top thereof and discharge it thereat, substantially as described.

5. An oven having its side and back walls each `provided with a plurality of separate and independent lines or passages, one set being arranged to convey hot air from the heating apparatus to the top of the oven and deliver it into the latter at that point, the other set being arranged to carry the air from the oven at .the bottoni thereof to the top of the same and discharge it at such point, substantially as described.

In testimony that I claim the foregoing as my own I have hereto'afiixed my signature in the presence of two witnesses.

EDWARD TAYLOR 'lllllSilllllll.

Vitnesses:

R. F. LEWIS, U. L. TATE. 

